WebWhales are divided into two families viz.: 1. Toothed whales, and 2. Whale bone whales. Toothed whales are predators and range in size from smaller one (such as sperm whale) … Ninety percent of marine life lives in the photic zone, which is approximately two hundred meters deep. This includes phytoplankton (plants), including dinoflagellates, diatoms, cyanobacteria, coccolithophores, and cryptomonads. It also includes zooplankton, the consumers in the photic zone. … See more The photic zone, euphotic zone, epipelagic zone, or sunlight zone is the uppermost layer of a body of water that receives sunlight, allowing phytoplankton to perform photosynthesis. It undergoes a series of physical, chemical, … See more Due to biological uptake, the photic zone has relatively low levels of nutrient concentrations. As a result, phytoplankton doesn't receive enough nutrients when there is high water-column stability. The spatial distribution of organisms can be controlled by a … See more Most of the solar energy reaching the Earth is in the range of visible light, with wavelengths between about 400-700 nm. Each colour of visible light has a unique wavelength, and … See more • Mesophotic coral reef • Electromagnetic absorption by water • Epipelagic fish See more In the photic zone, the photosynthesis rate exceeds the respiration rate. This is due to the abundant solar energy which is used as an energy source for … See more The depth is, by definition, where radiation is degraded down to 1% of its surface strength. Accordingly, its thickness depends on the extent of light attenuation in the water column. … See more Phytoplankton are unicellular microorganisms which form the base of the ocean food chains. They are dominated by diatoms, which grow silicate shells called frustules. When diatoms die their shells can settle on the seafloor and become See more
Marine Ecosystems - National Geographic Society
WebThe majority of organisms in the aphotic zone include sea cucumbers (phylum Echinodermata) and other organisms that survive on the nutrients contained in the dead bodies of organisms in the photic zone. Beneath the pelagic zone is the benthic realm, the deep-water region beyond the continental shelf ( Figure ). WebThe benthic zone is a community of organisms that thrive in, on, or near the seabed. This zone covers all from tidal pools and continental shelves to abyssal depths. Organisms that live in the benthic Zone are called “benthos.” They are … canney\\u0027s water solutions
44.4: Aquatic Biomes - Biology LibreTexts
WebWithin the pelagic realm is the photic zone, which is the portion of the ocean that light can penetrate (approximately 200 m or 650 ft). At depths greater than 200 m, light cannot penetrate; ... The physical diversity of the ocean is a significant influence on plants, animals, and other organisms. The ocean is categorized into different zones ... WebJan 28, 2024 · The largest diversity of marine animals also exist in this zone and includes: plant-eaters (e.g., zooplankton, sea turtles, sea urchins, tang fish) marine mammals (e.g., dolphins, whales,... WebAt the bottom of lakes and ponds, bacteria in the aphotic zone break down dead organisms that sink to the bottom. Nitrogen and particularly phosphorus are important limiting nutrients in lakes and ponds. Therefore, they are determining factors in the amount of phytoplankton growth in lakes and ponds. fix space bar